I know, it's odd. My wife, for instance, loves the townhouse/streetcar suburb aspect of Toronto ("the whole city is made of houses!") but every time we look around, she's like "of course, you would want a gate or something...".
These sorts of neighbourhoods are her favourite, but the possibility of just wandering onto the lawn is always a bit much for her. I'm always saying, "yeah but we just know not to do that" etc., but the reply is "...OK, but just to be sure..."